Flame retention head for a waste oil-burning system



FIG. 1 is a perspective view of a flame retention head for a waste oil-burning system showing our new design;

FIG. 2 is a side elevational view thereof, as seen generally from the right in FIG. 1, the opposite side view being a mirror image thereof, the top view being identical thereto when the FIG. 2 view is rotated counter-clockwise through ninety degrees, and the bottom view being identical thereto when the FIG. 2 view is rotated clockwise through ninety degrees;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a cross-sectional view taken about along line 5—5 of FIG. 4. 

The ornamental design for a flame retention head for a waste oil-burning system, as shown and described. 